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A 2.0 centimeter tall object is located in front of a mirror. A 1 centimeter tall upright image is formed behind the mirror, 165 centimeter from the object. Evaluate what the focal length of mirror?
A hardworking ant must supply 0.00805 N to pull a small piece of fruit at constant velocity over a distance of 9.60 cm up a small hill to the entrance of the colony. calculate the work done by the ant by pulling the piece of fruit up the hill
a beam of laser light with wavelength 612 nm is directed through a slab of glass having index of refraction 1.5.a for
A parallel-plate capacitor is charged to a potential difference of 12 V. The area on each plate is 20 cm2 and the spacing between plates is 0.15 mm.
How many electrons would have to be removed from one sphere and added to the other to cause an attractive force between the spheres of magnitude 1.00 x 10^4 N (roughly one ton)? Assume that the spheres may be treated as point charges.
An ocean liner leaves New York City and travels 34.0° north of east for 169 km. How far east and how far north has it gone? In other words, what are the magnitudes of the components of the ship's displacement vector in the subsequent directions.
a diffraction grating has 350 linesmm and is illuminated at normal incidence by white light. a spectrum is formed on a
A surfer is catching a wave. Suppose she starts at the top ofthe wave with a speed of 1.4 m/s and movesdown the wave until her speed increases to 9.5 m/s. how much work is done by the (nonconservative)force of the wave
Two skaters, one with mass 65 kilogram and the other with mass 40 kilogram, stand on an ice rink holding a pole of length 10 meter and negligible mass. Evaluate how far does the 40 kilogram skater move
The energy provided each hour by heat to the turbine in an electric power plant is 9.5 x 10^12 J. If 6.5 x 10^12 J of energy is exhausted each hour from the engine as heat
a rowland ring of mean radius 15 cm has 3500 turns of wire wound on a ferromagnetic core of relative permeability 800.
Two small metallic spheres, each of mass 0.20g, are suspended as pendulums by light strings from a common point.
A 4900 kg lunar lander is in orbit 60 km above the surface of the moon. How much work must the thrusters do
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